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Page Views: 67 Date Added: 05/21/2008 Last Updated: 05/21/2008 Expiry Date: 05/19/2018 Description: Drill stem subs: Shenlong manufactures all the four types of subs e.g. straight OD type A or reduced section type B or swivel sub type C or lift sub type D as per API Spec 7.These would be with box and pin connections or with box or pin connection on both sides.Class of subs manufactured are (a) kelly subs (b) tool joint subs (c)crossover subs (d) drill collar subs (e)bit subs (f) swivel subs (g)lift subs.Bit subs can be bored out for installation of float valve assembly.A few of the subs are shown bellow: On enquiries and orders,please specify: Type of sub; Length between shoulders; Largest diameter; Bore; Connection type and size,indicating pin and box; Special features,i.e.float bore; For lift subs specify tapered or square shoulder and drill pipe OD Additional photos drill stem subs(API)

Company Information (Shenlong petroleum drilling tools Co.,Ltd)

Company Profile: Shenlong Petroleum drilling tools Co.,Ltd,a Sino-US joint enterprise,is one of the leading manufactures of drilling tools in mainland China. We manage our production line and inspection process according to the requirement of API.Our main products include slick drill collar,spiral drill collar,non-magnetic drill collar,heavy weight drill pipe,stabilizer,square and hexagonal Kelly,drill stem subs,amongst others. Our products have been widely used by many important oilfields both home and abroad.It is proved that there is no gluing or fracture after 600- hour conscecutive drilling.Our products can last much longer than that of many other competitors. With more than 60% of our products exported,we have long been enjoying a solid reputation both home and abroad.Here we promise you that your every enquiry will receive our prompt and careful reply!We will prove you that we will be your most trustable supplier of high quality products. Hope your enquiry all the time! Website URL: http://www.petrodrillingtools.com Year Established: 2006 Products/Service: drill collar(slick,spiral,non-magnetic), heavy weight drill pipe,stabilizer,drill stem subs,kelly

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